.wenben1{
    margin-top: 20px;
    margin-left: 15px;
}

.dingwei{
    position: fixed;
    right: 10px;
    top: 10px;
    width: 50px;
    height: 40px;
    display: flex;
    justify-content: space-between;
    font-size: 20px;
}